Those lists/directions are beaten up, and it's a really small pond to fish in.

My coworker already retired down there and the guy is basically just texting me the current temp, pictures of the beach or of him fishing...

I had a 90 day job hauling fish waiting for me.

They sustained themselves with nothing but a shack, some fruit trees, and fishing.

We started with Lithia, FL as we have military family that gave great reviews of the area (ie. fish hawk highly rated schools, increasing property values, military family renting in the area). 

Realistically, most families want to either be close to the base, or close to some tourist attraction around, so I bet you would find more success casting your net either at, or between those two things if that's the kind of fish you're trying to catch.

Plenty of fish in the sea to rent to.

I wasn’t fishing for the perfect cash flow property per-say, rather at this moment I’d prefer be able to determine the quality of a deal easierI’m going to include where I’m getting value of parameters from so that I can be critiqued in that regard.

Start asking "Who is your fish supplier, can I get it at the rates you do, what's his name let me ask him myself so I can decide if I like his terms or maybe I can negotiate something that is more inline with my business"?

Aside from that Austin has quite the diversity, Hill  country, water activities, lots of outdoor folks (running, cycling, swimming, rowing, fishing) and it has areas to even cater the cosmopolitan people looking for swanky places to eat.